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package main
import (
"fmt"
"gitee.com/quant1x/gox/fastqueue"
)
func main() {
myDisruptor := fastqueue.NewDisruptor(
fastqueue.WithCapacity(BufferSize),
fastqueue.WithConsumerGroup(MyConsumer{}))
go publish(myDisruptor)
myDisruptor.Read()
}
func publish(myDisruptor fastqueue.Disruptor) {
for sequence := int64(0); sequence <= Iterations; {
sequence = myDisruptor.Reserve(Reservations)
for lower := sequence - Reservations + 1; lower <= sequence; lower++ {
ringBuffer[lower&BufferMask] = lower
}
myDisruptor.Commit(sequence-Reservations+1, sequence)
}
_ = myDisruptor.Close()
}
// ////////////////////
type MyConsumer struct{}
func (this MyConsumer) Consume(lower, upper int64) {
for ; lower <= upper; lower++ {
message := ringBuffer[lower&BufferMask]
if message != lower {
panic(fmt.Errorf("race condition: %d %d", message, lower))
}
}
}
const (
BufferSize = 1024 * 64
BufferMask = BufferSize - 1
Iterations = 128 * 1024 * 32
Reservations = 1
)
var ringBuffer = [BufferSize]int64{}
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